Intaglio-printing machine



S. HOLLINGSWORTH. INTAGLIO PRINTING MACHINE.

APPUCATION man APR.7.1920.

1,402,295 Patented Jan. 3, 1922 3 SHEETS-SHEET I.

S. HOLLINGSWORTH.

INTAGLIO PmNTING MACHINE.

APPLICATION FILED APR. 7 1920.

Patented Jah. 3, 1922.,

3 SHEETS-SHEET 2- S. HOLLINGSWORTH.

INTAG LIO PRINTING MACHINE.

APPLICATION FILED APR. I. 1920.

19%02295, Patented Jan. 3, 1922;

w 3 SHEETS-SHEET 3. 2,5 3/ ,f6 0/ NHTED STATES? Atti@ QW.

SAMUEL HOLLINGSWORTH, OF SCGTCH PLAINS, NEW JERSEY,

AssrG'Noa To Balm- NoTE PEEss coMPANY,\ or PLAINEIELD, NEW JERSEY, ACORPORATION. 0E NEW JERSEY.

INTAGLIO-PRINTING MACHIN E.

incassa.

Specification of Letters Patent.

Patented Jan. 3, 11922.

To all whom it may concern:

Be it known that I, SAMUEL HOLLINGS- WORTH, a citizen of the UnitedStates, and resident of Scotch Plains, Union County, New Jersey, haveinvented new and useful Improvements in Intaglio- Printing Machines, ofwhich the following is a specification. y

The present invention relates enerally to intaglio printing' machines othe type shown in patent to Sturtevant, No. 1146290, of July 13, 1915,and has more particularly reference to the driving means that advancethe planks and change its direction at right angle to its previous lineof travel.

In machines of this general type there is generally a number ofangularly disposed tracks, usually arranged at right angles to eachother, and a number of planks or plate carrying members are provided,usually four, that, travel on the tracks and have their direction ofmovement chan ed, at right angles to the preceding one, w en the end ofeach track is reached. The drive of the plank is usually effected bymeans of a sprocket chain passing over four sprockets, and heretoforedifficulty has been experienced in changing the direction of movement ofthe plank at the end of each track, in that the sprocketv chain has atendency to slip with respect to or to disengage the sprocket and it istherefore diiiicult to control. the plank as it passes from one track toanother.

The main object of this invention is to vention is embodied in aconcrete and preferred form in which:

Fig. 1 is a plan view of a machine of the general type to which thisinvention relates showing the angularly disposed tracks and the fourplanks together with the driving means for the latter, thesuperstructure of the machine being omitted.

Fig. 2 is a plan view of one corner of the device shown in Fig. 1, witha plank indicated in dotted lines.

Fig. 3 is a vertical sectional view on the line 3-3'of Fig. 2.

- Fig. 4 is a vertical sectional view on the line 4-4-of Fig. 2.

'an oversize opening 17 at the central point of a plank. It will beunderstood that the pins on the chain advance the planks on the tracksaforesaid. Y

In order to effectively control each plank, as 1t changes its path ofmovement from one track to another, I provide an auxiliary drivingdevice whose surface speed is equal to that of the pin on the chain thattemporarily engages each plank on the turn so as to positively carry theplank from one track to another. This device locks itself automaticallyto the plank and automaticfllykunlocks itself from .and disengages the pan As here vshown this auxiliary driving device is conducted as follows:18 is an upright shaft rotating at the same speed as one of the uprightsprocket shafts, say in this instance 12, and driven therefrom by spurgears 19, 20 and 21. At its upper end shaft 18 carries a head 22 inwhich is pivotally supported, by means of suitable ears 23, a rocker arm24,v one end of which engages latch or taper pin 25 sliding in guide 26and normally heldin a depressed position by means of stationary camsurface 27,. acting on cam roller 28 carried by rocker arm 24. At acertain point in its revolution roller 28 drops into a depression orhole 29 in said cam 27 and a suitable spring, here shown as a helicoidalspring 30, is free t0 move rocker arm 24 and pin 25 is thereby projectedfromy its retracted position. Each plank is provided with four openings31, one of which coincides or registers with taper pin 25 when it ismoved into the projected position. The surface speed of the pin 25 isequal to the surface speed of pin 16; that is to say: the distance fromthe center of rotating shaft 18 to the center of pin 25 is the same asthe distance yfrom the center of sprocket wheel 14 to the pitchline ofsaid sprocket wheel. It is also to be noted that the radius of curvedsurface 32 at the corner of central spacing member 33, against whichsurface the plank bears during its period of transfer from one tracktoanother, is the same as the radius from the center of shaft 18 to thecenter of pin 25. When the plank has turned the corner at 32, roller 28will again. engage cam surface 27 and, acting in opposition to spring30, will retract pin 25 from opening 31, thereby releasing the plank.

It will be understood that by the foregoing means, the auxiliarydrivingl device moves the plank in synchronism with the movementimparted by the chain and also locks the plank temporarily againstoutward displacement, so that chain 15 and sprocket Wheel 14 will remainin proper mesh. If desired there may be two of these locking devices lateach turn in the bed, said locking devices being at diametricallyopposite sides of shaft 12. Since the two devices are identical inconstruction there is no need of repeating the description; sufiice itto say that both shafts 18 rotate at the saine speed in the samedirection and both are driven from shaft 12.

I claim:

1. In a printing machine, a plurality of angular-ly disposed tracks, aplank f or traversing said tracks, a rotatable transmission member, a.flexible transmission member actuated thereby and engaging the plank t0advance it over the tracks and to transfer' it from one angularlydisposed track to another, a second rotatable member rotating in thesame direction as the first rotatable member, a normally retracted pincarried by said second rotatable member having the same surface speed asthat of the pitch diameter of the first rotatable member, and means forprojecting said pin into engagement with the plank during the period ofits transfer from one track to another.

2. In a printing machine, a plurality of angularly dis osed tracks, aplank for traversing sai sion member, a flexible transmission memberactuated thereby and engaging the plank toadvance it over the tracks andto transfer it from one an ularly disposed track to another, two aditional rotatable members dis;

'posed at diametrically opposite sides of the 3. In a printing machine,avplurality ofangularly disposed tracks, a plank for traversing saidtracks, a rotatable transmission member, a flexible transmission meinberactuated thereby and engaging the plank to advance it over the tracksand to transfer -it from one angularly disposedtrack to another, asecond rotatable member rotating in the saine direction as the firstrotatable member, a normally retracted pin carried by said secondrotatable member having the same surface speed as that of the pitchdiameter of the first rotatable member, and means for projecting saidpin into engagement with the plank during the period of its transferfrom one track to another, and a curved surface connecting adjacenttracks and against which the plank bears during its period of transfer,said curved surface being drawn on a radius equal to a radius drawn fromthe center of the second rotatable member to the center of the pin.

Signed at Scotch Plains, in the county of Union and State of New Jersey,this second day of April 1920.

SAMUEL HOLLINGSWORTH.

tracks, a rotatable transmis#

